The distance between ancient Rome and ancient China was about 4,000 miles by land. There were terrible deserts and high mountains on the way. It was a very dangerous trip.

For a very long time, the ancient Romans did not know who was making this wonderful cloth called silk. The Romans first discovered pieces of silk in the goods they took from some of dead people they had conquered (征服). But those people did not know where the silk was made. They only traded for the silk.

The Romans tried to find more traders as they came into villages to trade silk for other goods. But the traders did not know who made the silk either. In fact, the trading along the Silk Road was a relay (接力)system. One trader would travel for a while, stop and trade, and return home. The next trader would continue, stop and trade, and return home. And so it went. No trader made the whole trip because the trip was too dangerous.

As silk was becoming more and more popular, the demand for it in ancient Rome had grown. Ancient Rome had treasure. They hoped to find “The Silk People” to trade for more silk. But most never returned because they could not make it through the desert. They had to turn around and come back.

This went on for a very long time.

As the years went by along the Silk Road, temples appeared. There were even cities built on the oases (绿洲). It was never easy to travel by land from ancient China to ancient Rome. But it was worth it. Ancient Rome traded treasure for ancient China’s silk and spices. In fact, more things travelled along the Silk Road than traders and goods. Ideas travelled along the Silk Road as well. The ideas changed the world.

1.Why was it difficult for the ancient Romans to know the silk maker?

A.Because the silk makers didn’t want to be conquered.

B.Because the silk makers wanted to make more money.

C.Because the traders never saw the silk makers.

D.Because the method of making silk was a secret.

2.Which of the words has the similar meaning to “demand” in paragraph 4?

A.Interest B.Price C.Need D.Value

3.What does the passage mainly tell us?

A.The discovery of ancient Rome. B.The importance of the Silk Road.

C.The history and value of the Silk Road. D.The international trade in ancient times.

4.According to the passage, which of the following statements is TRUE?

A.The Silk Road made a great difference to the world.

B.The ancient Romans wanted to conquer the traders.

C.Silk was the only thing that people traded along the Silk Road.

D.After building the temples, the travel was much easier than before.

Do you know 5G? It is the fifth generation (代) of mobile network technology. These new networks are coming.

China just issued commercial licenses (发放商用牌照) for 5G on June 6. This means that China's telecom companies were soon able to offer 5G networks for mobile phone users.

Each mobile network generation is faster and more powerful than the one before it. 1G let us talk to each other. 2G let us send messages. 3G gave us data and the Internet. And 4G made all of these things faster. What's special about 5G?

5G has a very short delay between sending and receiving information. Now, 4G takes about 100 to 200 milliseconds (毫秒) to send and receive data. But 5G will get it down to 1 millisecond or less—this is almost real-time.

This big change will not only make our mobile Internet faster, but also deeply change our lives. Read on to find out how.

5G+entertainment (娱乐)

5G networks are about 100 times faster than 4G. This means you can download a movie in seconds using 5G.

Also, virtual reality (VR) games will become more popular with 5G. The short delay of 5G will make the games feel even more real.

5G+transportation

5G will also bring us safer self-driving cars. These cars can send signals (信号)to each other. They also talk to traffic lights and road sensors (传感器). 5G will allow cars to react even faster than human drivers.

5G+smart homes

5G also makes the Internet of things possible. Internet of things is a large network that connects everything to the Internet. Smart homes are part of it.

For example, your toaster can automatically (自动地)start making breakfast after your alarm rings. And if its sensor feels the air becoming dry, a smart sprinkler could water your plants by itself.

1.What happened on the sixth day of June according to the passage?

A.5G came into use

B.China issued commercial licenses.

C.Mobile phone uses could talk to each other

D.5G delayed between sending and receiving information

2.What does the underlined word "delay" in Paragraph 4 probably mean in Chinese?.

A.延时 B.暂停 C.断开 D.卡顿

3.5G will change people's lives in many ways EXCEPT _________.

A.entertainment B.transportation C.smart homes D.health

4.Which of the following is NOT true according to the passage?

A.We can download a movie faster with 5G.

B.Human drivers can send signals at traffic lights.

C.The plants can water themselves by a smart sprinkler with 5G.

D.5G is faster and more powerful than 4G.

5.What's the main idea of the passage?

A.Mobile phone users can use 5G networks.

B.Each mobile network generation has their own advantages.

C.5G will change our lives in many ways.

D.5G will bring us safer self-driving cars.

阅读下面短文,掌握其大意,然后从各小题所给的四个选项中选出最佳选项。

Marcos was a hardworking farmer. Every day he asked his only son Paolo to___________ him in the fields, but Paolo seldom got out of bed before noon. Marcos was very sad about his only son.

One evening Marcos’ old friend Luigi_________ , “Marcos, why aren't your fields ready for planting?” Marcos explained that he was old and his back hurt. He said that Paolo was___________ and did not help with the farming. “Marcos, you need to use your ___________ as much as your back. I have an idea for you,” Luigi said.

Early the next morning Marcos rushed into Paolo's bedroom. “I found your grandfather’s map!” he cried. “We may find___________ he buried (埋 ) his gold coins!” Paolo jumped out of bed. “I’ll start over here,” Paolo told his father. Paolo dug in the field all day. While Paolo dug, his father_________ along, dropping something from his bag into the ground. When they went in for dinner that night, a very tired Paolo said, “I think Grandfather was old when he made his map. I don't think I'll dig tomorrow.”

Paolo returned to his lazy way and slept all morning. One day Marcos rushed into Paolo’s room and cried, “Paolo! I found the treasure in the fields!” Paolo ___________ went out to look. He said, “There is nothing here but lines and lines of vegetables.”

Marcos smiled, “Paolo, it is all around you. You have enough food to make it_________ the winter, with plenty more to sell!” Paolo was embarrassed (尴尬的) to see that his father was right. His one day of hard work had provided him with real treasure. He learned an important___________. He could make a good living with a little hard work. He became a good____________ and made his father proud.
 

1.A.feed B.help C.save D.watch

2.A.stood up B.moved in C.started out D.stopped by

3.A.busy B.excited C.lazy D.free

4.A.hands B.feet C.brain D.face

5.A.how B.where C.when D.why

6.A.got B.ate C.sang D.followed

7.A.quietly B.suddenly C.sleepily D.easily

8.A.through B.without C.since D.before

9.A.plan B.meeting C.lesson D.opinion

10.A.student B.actor C.friend D.farmer

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